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Start a Model Context Protocol server:

bash

jint-browser mcp

The transport is standard input/output. --stdio may be supplied explicitly. Standard output contains protocol messages only; diagnostics are sent to standard error.

Example client configuration:

json

{
  "mcpServers": {
    "jint-browser": {
      "command": "jint-browser",
      "args": ["mcp"]
    }
  }
}

Useful options:

bash

jint-browser mcp \
  --timeout 30s \
  --max-snapshot-length 40000

MCP pages are hardened by default. Use --trusted only when the content is trusted. --allow-private-network permits access to a local or private service while retaining the other hardened limits.

The process is the browsing session: cookies, storage, history, and the current page belong to that client process. The server serializes tool calls so a snapshot cannot race an action that replaces the document.

The command does not accept --http. Stdio gives one client one process and therefore one unambiguous stateful session. See the Jint.Browser.Mcp documentation for tools, resources, embedding, and HTTP session considerations.

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